al8lumetaChEuse al8lumetaChEuse

02-05-2017
Mathematics

contestada

What numbers multiply up to 81 and add to 36?

Respuesta :

wolf1728 wolf1728

02-05-2017

A) x * y = 81
B) x + y = 36
A) x = 81 / y Substituting this into B)
B) 81/y + y = 36 Multiplying both sides by y
81 + y^2 = 36y
y^2 -36y +81 = 0
Solving by quadratic formula
x1 = 33.5885
x2 = 2.4115

Answer Link

Otras preguntas

If a person deviates from the norms of a group the first thing the group is likely to do is

La viajera ________ (2 palabras) de la maleta perdida. The pronoun is either from estar or set and the verb is from habla.

If the endpoints of the diameter of a circle are (−14, 4) and (−2, 0), what is the standard form equation of the circle? a) (x − 8)2 + (y + 2)2 = 40 b) (x + 8)

Kia went to a hypnotherapist for treatment. which of her problems might hypnotherapy be most helpful for?

A __________ is a behavior that violates criminal law and is punishable with fines, jail terms, and/or other negative sanctions.

Which reason justifies step 2 in the proof

Eugenio is talking about what he used to do when he was a child. Write the appropriate vocabulary word or words that match the meanings of the underlined words.

help with this blank question

what position did the us take during the Indochina wars

What did many states do during the revolutionary war apex?